Chart 3 Press Switch & Power lights flashing | Weil-McLain CGS-4E

GOLD CGs-4E Gas-Fired Water Boiler — Boiler Manual

11d Troubleshooting — control module lights (cont.)

CHART 3 — PRESS SWITCH & POWER lights flashing

— Usually indicates pressure switch stuck closed or failed to make within 5 minutes —

Electrical shock hazard — Wherever you see TURN OFF POWER, follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.

•Reset boiler control by turning off power at service switch or turning down thermostat for at least 45 seconds.

•Thermostat should call for heat and appropriate zone valves open.

Does inducer motor operate?

No

• Wait 45 seconds.

Does inducer motor operate?

Yes

No		Yes

•Remove INDUCER plug (Figure 25, Item 6, page 46) from plug receptacle of control module.

•Place voltmeter leads across the 120 VAC N and

120 VAC H pins of the INDUCER receptacle (left column center and right column bottom pins).

Does the voltmeter indicate 120 VAC?

No	Yes

• Wait 5 minutes.

Is PRESS SWITCH light flashing?

No

Yes

• Try reseating plug in module receptacle and restart.

• If inducer still does not work, replace inducer assembly.

• Retest.

•Remove one of the wires connected to the pressure switch.

•Check continuity across the switch terminals.

Does the ohmmeter indicate the switch is closed?

No			Yes

•Boiler should be in normal operating sequence.

•Observe operation until thermostat is satisfied and inducer has completed its post-purge cycle.

Are vent or combustion air

passages blocked?

No				Yes

•	Replace control		• Check air pressure switch
				per manual Section 11b.
	module.
			•	Replace if necessary.
•	Retest.
			•	Retest.

•Clear passages and recycle boiler.

•Recheck boiler operation.

Part number 550-110-282/1108

49

Image 49

Weil-McLain CGS-4E manual Chart 3 Press Switch & Power lights flashing

Contents

GOLDCGs-4E How it works Gold CGs-4EGas-Fired Induced-Draft Water Boiler Contents Please read before proceeding InstallerUser Installations must follow these codes 1a Prepare boiler location codes & checklistBefore locating the boiler, check the following 1b Prepare boiler location clearances 1c Prepare boiler location vent system When removing boiler from an existing common vent systemCGs-4E special vent system Vent system Products to avoid 1d Prepare boiler location contaminationAreas likely to have contaminants Combustion air requirements 1e Prepare boiler location air openingsSpecial considerations Sizing air openings Sizing air openings for CGs-4E installations Orifice replacement procedure 2a Prepare boiler placement & setupPlace boiler/crate near position Inspect orifices and burners Hydrostatic pressure test 2b Prepare boiler pressure testDrain and remove fittings Prepare boiler for test 3a Water piping general information 3b Water piping single-zone system Install an automatic air vent in air vent tapping as shown Piping multiple zones 3c Water piping multiple zones System or zone circulator Zone valve Drain valve Boiler isolation balancing valves Flow/check valveRelief valve Fill valve Valve adjustment Figures 8 and 9 only Temperature gauges3d Piping low temp systems Primary/secondary preferred bypass piping method Boiler isolation balancing valves Blend temperature gauge BOILER-bypass piping method Valve adjustment Figures 8 SYSTEM-bypass piping method Prevent chilled water from entering 3e Water piping refrigeration systemsBoiler Vent system Venting and combustion airCombustion air openings Combustion air quality Gas piping Connecting gas supply piping to boilerNatural Gas Propane Gas Electrical installation must comply with Field wiringWiring connections Thermostat 7a Start-up preparation Freeze protection when usedDetermine if water treatment is needed Check for gas leaks Inspect system water piping Inspect base insulation 7b Start-up operate boilerFinal check before starting boiler Start the boiler Pilot burner flame Figure Check burner flamesMain burner flame Figure 7c Start-up if boiler doesn’t start If none of the above corrects the problem, refer toCheck for Gas not turned on at meter or boiler? Installation and service certificate Check-out procedure checklist Sequence returns to step 9a Operation sequenceBoiler is now in the off cycle Operation sequence Wiring diagram 9b Operation wiring diagrams 9c Operating instructions CGs-4E CMR 5.082a 1 through Addendum Instruction for Commonwealth of MassachusettsExemptions The following equipment is exempt from CMR 5.082a1 through 10a Service and maintenance schedule 10b Service & maintenance annual start-up Burners, base and inlet air box With boiler power off, place a few drops of S.A.ECondensate drain system Inducer motor 10b Service & maint. annual start-up Relief valve, typical Boiler relief valve Review with owner Clean between sections with wire flue brushShut down boiler Place newspapers in base of boiler to collect soot Before troubleshooting 11a Troubleshooting procedureCheck the following Can result Air pressure switch 11b Troubleshooting air pressure switchCheck pressure switch setting Troubleshooting air pressure reading Control indicator lights Lockout modes 11c Troubleshooting control moduleControl indicator lights NON-LOCKOUT modes Troubleshooting the control module Control module connections Chart 1 Troubleshooting Power light status 11d Troubleshooting control module lights Chart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Chart 4 Flame & Power lights flashing Does blower motor operate? Item 8 , Verify Sequence of operation, , Section assembly Base Jacket Trim Controls 12a Replacement partsWeil-McLain part numbers are found in Weil-McLain Boilers Weil-McLain part number 12b Replacement parts section assembly Base assembly 12c Replacement parts base Description Weil-McLain Part number Jacket assembly 12d Replacement parts jacket Boiler Fittings shown are factory-installed on boiler 12e Replacement parts trim Propane gas components 12f Replacement parts controls Dimensional drawing 13a Dimensions Tested for 50 psi working pressure 13b Ratings This type of respirator is based on Handling ceramic fiber and fiberglass materialsEye Irrigate immediately Breathing Fresh air